backpressure - why, and how much?
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#15
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Join Date: Aug 2002
Location: Funky Town, Texas
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I'll say it like this for the 3800 II N/A crowd. A 2.5 or 3.0 inch downpipe followed by CAT back piping of 2.5 and a CAT of 2.5 as well. You should pick up a few tenths that way. Ported manifolds will help as well. Good for three tenths in the GP SE.
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